Question

An object moves in the + x-direction at a speed of 40 m/s. As it passes through the origin, it starts to experience a constant acceleration of 3.5 m/s2 in the – x-direction.
(a) What will happen next? (1) The object will reverse its direction of travel at the origin; (2) the object will keep traveling in the + x-direction; (3) the object will travel in the + x-direction and then reverses its direction. Why?
(b) How much time elapses before the object returns to the origin?
(c) What is the velocity of the object when it returns to the origin?


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  • CreatedAugust 29, 2015
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